CN202019132U - Laser drive circuit of laser direct imaging all print circuit - Google Patents
Laser drive circuit of laser direct imaging all print circuit Download PDFInfo
- Publication number
- CN202019132U CN202019132U CN2011200762539U CN201120076253U CN202019132U CN 202019132 U CN202019132 U CN 202019132U CN 2011200762539 U CN2011200762539 U CN 2011200762539U CN 201120076253 U CN201120076253 U CN 201120076253U CN 202019132 U CN202019132 U CN 202019132U
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- circuit
- laser
- electronic switch
- protection circuit
- current stabilization
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- Expired - Fee Related
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Abstract
The present utility model relates to a laser drive circuit of a laser direct imaging all print circuit. The laser drive circuit comprises a transformer, a rectification circuit, a filter circuit, a slow startup circuit, a current stabilization circuit, a laser protection circuit, an overvoltage protection circuit, an electronic switch and a starting control circuit. The transformer, the rectification circuit, the filter circuit and the slow startup circuit are connected successively, the slow startup circuit is respectively connected with the current stabilization circuit, the laser protection circuit and the electronic switch, the laser protection circuit is connected with the overvoltage protection circuit, the overvoltage protection circuit is connected with the electronic switch, the electronic switch is connected with the starting control circuit, and a laser is respectively connected with the current stabilization circuit and the laser protection circuit. The laser drive circuit has the advantages of good product quality, high reliability and short process flow.
Description
Technical field
The utility model relates to the laser imaging all print, is to adopt laser imaging to make screen printing template the drive circuit for laser of utilization addition process explained hereafter PCB circuit board.
Background technology
In recent years, along with the fast development of electronics industry, the demand of PCB printed circuit board is increased greatly, the production of PCB has become the main basic industry of electron trade.China has become world's circuit-board industry second big producing country, and the PCB industrial water consumption is the world's strongest nation.And annual with 20% speed increase, water consumption is big, easily environment is polluted.Therefore, eliminating the subtractive process production technology, adopt addition process to produce the PCB printed circuit board process, can shorten production technology, eliminate waste liquid, improve the quality of products, the speed production process, is the brand-new practical technique with social benefit of increasing economic efficiency.
Subtractive process technology is adopted in the manufacturing of traditional PCB printed circuit board, form circuitous pattern by in copper-clad plate, exposing, taking a picture, by etching away the part of inverter circuit figure in the copper-clad plate, the copper layer that covers that stays is carried out relevant treatment again and forms printed circuit board again.Subtractive process is complex process not only, because technologies such as etching, photograph also can produce the three wastes, can cause environmental pollution if deal with improperly simultaneously.And allprint plate addition process manufacture craft is used digital laser printing technology, and the direct wire mark of electrically conductive ink is formed the conducting wire on substrate.
All print printed electronics circuit board technology both can be used for direct wire mark resist pattern, made conductor line and pad; Can be used for direct wire mark solder resist and character etc. again, thereby reach obvious saving resource (manpower, equipment and the energy), reduction product cost, can significantly reduce environmental pollution again.Adopt the full printing technology of digital laser, can simplify the PCB production process greatly.The data of the full printing technology employing of digital laser CAD/CAM directly drive digital laser and become the mould technology to form graphics template, form required circuitous pattern by silk screen printing, can save 60% production process than traditional subtractive process technology; And eliminated production equipment and expensive materials such as a lot of optical plotters, developing machine, exposure machine and photographic negative, shorten the production cycle widely, and improved product quality, qualification rate and productivity ratio.This is because the accurate technique of counterpoint of the full printing technology process using of digital laser, avoids and eliminate forming photographic negative light in the subtractive process and painting the damage that brings in temperature in the process, humidity, punching scale error, the technical process etc.So the full printing technology manufacturing process of digital laser can improve PCB product quality, reliability; And the more important thing is and can realize saving the energy, save resource, fall dirty the reduction of discharging.Waste liquid that the subtractive process production process produced, waste water can be overcome, approximately 50%～70% sewage disposal can be saved.Adopt the full printing technology of digital laser both can simplify and shorten the PCB production process significantly, can greatly improve environment again, reach the cleaner production target of PCB.
Summary of the invention
The purpose of this utility model provides a kind of drive circuit for laser of laser direct imaging all print, has that quality is good, reliability is high, the advantage of accurate positioning.
For achieving the above object, the utility model is achieved through the following technical solutions:
The drive circuit for laser of laser direct imaging all print comprises transformer, rectification circuit, filter circuit, soft-start circuit, current stabilization circuit, laser protection circuit, overvoltage crowbar, electronic switch, start-up control circuit; Transformer, rectification circuit, filter circuit, soft-start circuit connect successively, and soft-start circuit connects current stabilization circuit, laser protection circuit and electronic switch respectively; Laser protection circuit connects overvoltage crowbar, and overvoltage crowbar connects electronic switch, and electronic switch connects the start-up control circuit; Laser is connected with current stabilization circuit, laser protection circuit respectively.
Compared with prior art, the beneficial effects of the utility model are:
1) key technology of employing laser direct imaging has designed drive circuit for laser, and the PCB product of making has more excellent quality index and technical performance, the reliability height;
2) directly form electronic circuit by laser imaging, the product percent of pass height, technological process is optimized more;
3) make PCB technology than subtractive process and can save 60% production process; And eliminated production equipment and expensive materials such as a lot of optical plotters, developing machine, exposure machine and photographic negative, shorten the production cycle widely, and improved product quality, qualification rate and productivity ratio.
4) adopt accurate technique of counterpoint, avoid and eliminate in the subtractive process forming photographic negative light and painting the damage that brings in temperature in the process, humidity, punching scale error, the technical process etc.
Description of drawings
Fig. 1 is the structure principle chart of drive circuit for laser.
Embodiment
The laser direct imaging all print, adopt the full printing technology of laser direct imaging addition process,, the circuitous pattern template is placed on the substrate by laser direct imaging technology processing and fabricating circuitous pattern template, coated with conductive printing ink forms printed circuit pattern through the overcuring sintering.
See Fig. 1, drive circuit for laser comprises transformer, rectification circuit, filter circuit, soft-start circuit, current stabilization circuit, laser protection circuit, overvoltage crowbar, electronic switch, start-up control circuit; Transformer, rectification circuit, filter circuit, soft-start circuit connect successively, and soft-start circuit connects current stabilization circuit, laser protection circuit and electronic switch respectively; Laser protection circuit connects overvoltage crowbar, and overvoltage crowbar connects electronic switch, and electronic switch connects the start-up control circuit; Laser is connected with current stabilization circuit, laser protection circuit respectively.
The 220V ac voltage signal is divided into two-way through transformer, rectification circuit, filter circuit after handling: the first via provides power supply by current stabilization circuit to laser through soft-start circuit; The second the tunnel supplies with laser protection circuit through soft-start circuit.Filter circuit, soft-start circuit, laser protection circuit, overvoltage crowbar, electronic switch all are the safeguard measures of laser, prevent interference, the overshoot of mains switch, the influence of surge, and the damage that causes of accumulation of static electricity.
Claims (1)
1. the drive circuit for laser of a laser direct imaging all print, it is characterized in that, comprise transformer, rectification circuit, filter circuit, soft-start circuit, current stabilization circuit, laser protection circuit, overvoltage crowbar, electronic switch, start-up control circuit; Transformer, rectification circuit, filter circuit, soft-start circuit connect successively, and soft-start circuit connects current stabilization circuit, laser protection circuit and electronic switch respectively; Laser protection circuit connects overvoltage crowbar, and overvoltage crowbar connects electronic switch, and electronic switch connects the start-up control circuit; Laser is connected with current stabilization circuit, laser protection circuit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200762539U CN202019132U (en) | 2011-03-22 | 2011-03-22 | Laser drive circuit of laser direct imaging all print circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200762539U CN202019132U (en) | 2011-03-22 | 2011-03-22 | Laser drive circuit of laser direct imaging all print circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202019132U true CN202019132U (en) | 2011-10-26 |
Family
ID=44812799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200762539U Expired - Fee Related CN202019132U (en) | 2011-03-22 | 2011-03-22 | Laser drive circuit of laser direct imaging all print circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202019132U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337781A (en) * | 2013-07-19 | 2013-10-02 | 广东东研网络科技股份有限公司 | Overcurrent latch-up protective circuit of pumping laser |
| CN109066932A (en) * | 2018-09-05 | 2018-12-21 | 深圳市炬诠科技有限公司 | A kind of luminous energy wireless power transfer device |
-
2011
- 2011-03-22 CN CN2011200762539U patent/CN202019132U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337781A (en) * | 2013-07-19 | 2013-10-02 | 广东东研网络科技股份有限公司 | Overcurrent latch-up protective circuit of pumping laser |
| CN103337781B (en) * | 2013-07-19 | 2016-08-31 | 广东东研网络科技股份有限公司 | Pump laser crosses stream latch-up protection circuit |
| CN109066932A (en) * | 2018-09-05 | 2018-12-21 | 深圳市炬诠科技有限公司 | A kind of luminous energy wireless power transfer device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111026 Termination date: 20170322 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |